Good Afternoon ,everyone .It's very honor for me to be here to speak to you.Let me introduce myself.I'm xx years old.My name is xxx,I'm from xx school,My school is big and beautiful,my teachers and classmates are so friendly that I like them very much.I have many hobbits,such as running,swimming and learning English.
这样太少了,顶多够20秒,再补充几段吧,顺便说一下演讲的场合是在其他学校还是在面试。